Connected vehicles are being deployed to make our roads safer and smarter. The benefits of this technology are widely discussed; less so the risks. These risks are familiar to the ICT/cybersecurity sphere; but they are safety threats for the connected transport network. A Cooperative Credential Management System provides security for the 'internet of cars' and is being deployed in the US and Europe. Australia has co-led CCMS development, and is proposing to implement its own CCMS. Combining Australian and international perspectives, this paper provides an update on this work, and gives insights into new methods of safety and security management.